/***************************************************************************
 *   Copyright (C) 2008 by Ryszard Król   *
 *   rysiek.krol@gmail.com   *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/
#ifndef IMAGEREADER_H
#define IMAGEREADER_H
#include <QMutex>
#include <QThread>
#include <QList>
#include <QWaitCondition>

class QDir;
class PictureListWidgetItem;
class PictureManager;
class QFileInfo;
class QString;
class QImage;

/**
	@author Ryszard Król <rysiek.krol@gmail.com>
*/

class ImageReader : public QThread
{
        Q_OBJECT
public:

        ImageReader ( PictureManager *manager, QDir *dir );

        ~ImageReader();


        /**
        * WaitCondition do budzenia watku
        */
        QWaitCondition readDirCondition;
        /**
        * Mutex do QWaitCondition
        */
        QMutex waitMutex;


        /**
        * Ustawia zmienna isActive
        */
        void setIsActive ( bool theValue );
        /**
        * Ustawia zmienna curDir (aktualny katalog)
        */
        void setDir ( QDir* theValue );
        /**
        * Metoda zwracające zmienna isActive
        */
        bool active();
        /**
        * Metoda zwraca aktualnie ustawiony katalog
        */
        QDir* getDir() const;

private:
        /**
        * Wskaznik do klasy GUI
        */
        PictureManager *manager;

        /**
        * Mutex do isActiv'a
        */
        QMutex mutex;
        /**
        * Zmienna przechowuje aktualny katalog
        */
        QDir *dir;


        bool isActive;
        bool sendIconGenerationCompleateEvent;
        void sortItems(QList<PictureListWidgetItem*> *lista, int beg, int end);
        QImage generateIcon ( const QFileInfo  &filePatch );
        void generateItems();
        bool compareItems(PictureListWidgetItem *firstItem, PictureListWidgetItem *secondItem);

protected:
        void run();



};

#endif
